<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>顺序填充</title>
<style>
.grid-container {
	display: grid;
	/* grid-template-columns: auto auto auto; */
	grid-template-columns: 1fr 1fr 1fr;
	background-color: #2196F3;
	padding: 10px;
}
.grid-item {
	background-color: rgba(255, 255, 255, 0.8);
	border: 1px solid rgba(0, 0, 0, 0.8);
	padding: 20px;
	font-size: 30px;
	text-align: center;
}
</style>
</head>
<body>

<h1>网格元素</h1>

<p>网格布局父元素的 <em>display</em> 属性需要设置 <em>grid</em> 或 <em>inline-grid</em>。</p>

<p>网格容器内的直系子元素自动布局为网格元素。</p>

<div class="grid-container">
	<div class="grid-item">1</div>
	<div class="grid-item">2</div>
	<div class="grid-item">3</div>
	<div class="grid-item">4</div>
	<div class="grid-item">5</div>
	<div class="grid-item">6</div>
	<div class="grid-item">7</div>
	<div class="grid-item">8</div>
	<!-- <div class="grid-item">9</div> -->
</div>

</body>
</html>